A5100347784- Magnetic and transport properties of perovskites and related materials
- Ferroelectric and Piezoelectric Materials
- Electronic and Structural Properties of Oxides
- Multiferroics and related materials
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Condensed Matter Physics
- Dielectric materials and actuators
- Semiconductor materials and devices
- ZnO doping and properties
- Advanced Sensor and Energy Harvesting Materials
- Advancements in Solid Oxide Fuel Cells
- Acoustic Wave Resonator Technologies
- Electrochemical Analysis and Applications
- Ferroelectric and Negative Capacitance Devices
- Physics of Superconductivity and Magnetism
- Magnetic properties of thin films
- Conducting polymers and applications
- Crystallography and molecular interactions
- Advanced Antenna and Metasurface Technologies
- Microwave Dielectric Ceramics Synthesis
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Magnetic Properties and Synthesis of Ferrites
- Laser Material Processing Techniques
China Institute of Atomic Energy
2025
Xi'an Jiaotong University
2015-2024
Beijing Jiaotong University
2021-2024
Sun Yat-sen University
2024
Biogas Institute of Ministry of Agriculture
2024
Ministry of Agriculture and Rural Affairs
2024
Jiangnan University
2024
Shanghai Institute of Microsystem and Information Technology
2023
North Carolina State University
2022
Daicel (Japan)
2020
Ultrahigh energy storage density of 52.4 J cm-3 with optimistic efficiency 72.3% is achieved by interface engineering epitaxial lead-free oxide multilayers at room temperature. Moreover, the excellent thermal stability performances provides solid basis for widespread applications thin film systems in modern electronic and power modules harsh working environments.
Abstract Organic photodetectors (OPDs) have achieved rapid development due to the emergence of organic semiconducting materials with high absorption coefficient and tunable optical bandgap, as well progress in device physics engineering. The working mechanism fundamental parameters OPDs are briefly introduced. Some smart strategies for realizing performance photovoltaic type narrowband (PV‐NB‐OPDs) photomultiplication (PM‐NB‐OPDs) comprehensively reviewed. recent PV‐NB‐OPDs PM‐NB‐OPDs is...
Epitaxial thin films of CoFe2O4 (CFO) have successfully been transferred from a SrTiO3 substrate onto flexible polyimide substrate. By bending the polyimide, different levels uniaxial strain are continuously introduced into CFO epitaxial films. Unlike traditional induced by substrates, will not suffer critical thickness limitation, crystalline quality variation, and clamping, more importantly, it provides intrinsic reliable way to study strain-controlled behaviors in functional oxide...
Mechanical flexibility of electronic devices has attracted much attention from research due to the great demand in practical applications and rich commercial value. Integration functional oxide materials flexible polymer proven an effective way achieve devices. However, chemical mechanical incompatibilities at interfaces dissimilar make it still a big challenge synthesize high-quality single-crystalline thin film directly on substrates. This study reports improved method that is employed...
As passive components in flexible electronics, the dielectric capacitors for energy storage are facing challenges of flexibility and capability integration miniaturization. In this work, all-inorganic film have been obtained. The show a desirable recoverable density ( Wrec) 40.6 J/cm3 good efficiency (η) 68.9%. Moreover, they no obvious deterioration on both Wrec η after 104 times mechanical bending cycles or under state with curvature radius 4 mm. Besides, outstanding stability against...
A large energy storage density (ESD) of 30.4 J/cm3 and high efficiency 81.7% under an electrical field 3 MV/cm was achieved at room temperature by the fabrication environmentally friendly lead-free BaZr0.2Ti0.8O3 epitaxial thin films on Nb-doped SrTiO3 (001) substrates using a radio-frequency magnetron sputtering system. Moreover, BZT film capacitors exhibit great thermal stability ESD from 16.8 to 14.0 with beyond 67.4% fatigue endurance (up 106 cycles) in wide range 125 °C. Compared other...
Abstract Purely mechanical strain‐tunable microwave magnetism device with lightweight, flexible, and wearable is crucial for passive sensing systems spintronic devices (noncontact), such as flexible detectors, signal processing devices, mechanics‐magnetic sensors. Here, a magnetic CuFe 2 O 4 (CuFO) epitaxial thin film tunable ferromagnetic resonance (FMR) spectra demonstrated by purely strains, including tensile compressive on fluorophlogopite (Mica) substrates. Tensile strains show...
The one-electron water oxidation reaction (WOR) to generates hydroxyl radicals (•OH) plays a pivotal role in electrochemical advanced processes (EAOPs). In this study, we present novel and facile strategy involving Ho-doping regulate the electronic configuration of conventionally nonactive PbO2 electrode. Experimental findings demonstrate that doped with 2.4% Ho achieves highest degradation performance sulfamethazine (SMZ) (∼100%; kobs = 0.093 min−1) •OH generation efficiency relatively...
High-quality epitaxial Pb0.92La0.08Zr0.52Ti0.48O3 (PLZT) films of thickness ∼880 nm were fabricated using pulsed laser deposition on (001) Nb doped SrTiO3 (Nb:STO) substrates. Besides a confirmation the relationship [100]PLZT//[100]Nb:STO and (001)PLZT//(001)Nb:STO X-ray diffraction, transmission electron microscopy study has revealed columnar structure across film thickness. The recoverable energy density (Wrec) PLZT thin capacitors increases linearly with applied electric field best value...
Industry has been seeking a thin-film capacitor that can work at high temperature in harsh environment, where cooling systems are not desired. Up to now, the working of is still limited up 200 °C. Herein, we design multilayer structure with layers paraferroelectric (Ba0.3Sr0.7TiO3, BST) and relaxor ferroelectric (0.85BaTiO3-0.15Bi(Mg0.5Zr0.5)O3, BT-BMZ) realize optimum properties flat platform dielectric constant breakdown strength for excellent energy storage performance temperature....
Highly epitaxial LaBaCo(2)O(5.5+δ) thin films were grown on the vicinal (001) SrTiO(3) substrates with miscut angles of 0.5°, 3.0°, and 5.0° to systemically study strain effect its physical properties. The electronic transport properties magnetic behaviors these are strongly dependent angles. With increasing angle, property film changes from semiconducting semimetallic, which results most probably locally strained domains induced by surface step terraces. In addition, a very large...
Both conductivity and magnetism of spinel CuFe<sub>2</sub>O<sub>4</sub> can be effectively tuned by the engineered cation redistribution through heat treatment.
Metamaterials, offering unprecedented functionalities to manipulate electromagnetic waves, have become a research hotspot in recent years. Through the incorporation of active media, exotic behavior metamaterials can be dramatically empowered by dynamic control. Many ferroelectric materials such as BaSrTiO 3 (abbreviated BST), exhibiting strong response external electric field, hold great promise both microwave and terahertz tunable devices. A new Ba 0.6 Sr 0.4 TiO –silicon hybrid...
Currently, the quartz glass–TC4 dissimilar joint has been applied in fields such as radiation environment testing, reactor engineering, and other areas. However, high brittleness of glass thermal mismatch during welding process limit require further development. Thus, a femtosecond laser was employed to perform direct joining these materials under non-optical contact conditions, with aid well-designed clamp optimized process, effect pulse energy on microstructure mechanical properties...
Ferromagnetic thin films of the A-site nano-ordered double perovskite LaBaCo(2)O(5.5+δ) (LBCO) were grown on (001) MgO, and their structural magnetic properties characterized. The as-grown have an excellent epitaxial behavior with atomically sharp interfaces, c-axis LBCO structure lying in film plane interface relationship given by (100)(LBCO)//(001)(MgO) [001](LBCO)//[100](MgO) or [010](MgO). exhibit a giant magnetoresistance (54% at 40 K under 7 T) anomalous hysteresis, depending strongly...
The magnetic and electrical properties of complex oxide thin films are closely related to the phase stability cation ordering, which demands that we understand process-structure-property relationships microscopically in functional materials research. Here study multiferroic double-perovskite La2NiMnO6 epitaxially grown on SrTiO3, KTaO3, LaAlO3 DyScO3 substrates by pulsed laser deposition. effect epitaxial strains imposed substrate microstructural has been systematically investigated means...
High-quality flexible magnetic oxide thin films have promoted a wide range of potential applications in spintronic devices due to their unique physical properties. To obtain the optimized microwave magnetism for future all-oxide-based applications, high-quality materials with excellent epitaxial quality as well specific bending properties related ferromagnetic resonance are high demand. Here, (001)-oriented La0.67Sr0.33MnO3 different thicknesses been grown and subsequently transferred onto...
The transport properties of double perovskite LaBaCo2O5.5+δ thin films with different thicknesses were systemically studied. A (7 nm in thickness), disordered layer was formed at the interface between film and substrate. had a typical semiconductor behavior antiferromagnetic ferromagnetic coexisting low temperature. Although Curie temperature independent thickness, coercive fields magnetizations increase increasing thickness. An ultra large magnetoresistance effect value about 44% obtained...
The ability to control the microstructures and physical properties of hetero-epitaxial functional oxide thin films artificial structures is a long-sought goal in materials research. Normally, only lattice misfit between film substrate considered govern epitaxial films. In fact, mismatch unit cell arrangement Surface-Step-Terrace (SST) dimension substrate, named as "SST residual matching", another key factor that significantly influence film. nature strong local strain induced from both SST...
Thin films of double-perovskite structural LaBaCo2O5.5+δ were epitaxially grown on (110) NdGaO3 substrates by pulsed laser deposition. Microstructural studies high-resolution X-ray diffraction and transmission electron microscopy revealed that the have an excellent quality epitaxial structure. In addition, strong in-plane anisotropic strains measured. Electrical transport properties characterized ultra-high-vacuum four-probe scanning tunneling system at different temperatures. It was found...